India Post — late delivery of registered parcel and abstraction of items from the package

Sir,
I have been sent a registered parcel from post office so jalahalli (West), bangalore to bishnupur, manipur. The parcel was booked on 14/04/19. My parcel was required to deliver at my house within 15 days. Accordingly, i checked after 15 days and found no items was delivered at destination. Actually i am staying in bangalore, i told to my friend to check whereabouts my parcel at bishnupur so. But he had not got any reference regarding this. After that i complained personally at jalahalli (West) post office, bangalore pertaining to this matter.
After three months the parcel package was received on 10 july 19 at destination. However, the contents of package was tampered and some contents of package was missing and some replaced.
In view of the above, it is requested that necessary and needful action may be taken.